This is the 7170th most frequent Turkish word.
ekvadorlu
"Ekvadorlu" means "Ecuadorian" (a person from Ecuador) in English.
The word 'Ekvadorlu' here functions as an adjective to describe Maria's nationality as being Ecuadorian.
Ekvadorlu Maria, bu yıl Türkçe öğrenmeye başladı.
Maria, who is Ecuadorian, started learning Turkish this year.
In this sentence, 'Ekvadorlu' precedes 'bir futbolcu' and describes the profession of the individual as an Ecuadorian football player.
Dün Ekvadorlu bir futbolcu ile tanıştık.
Yesterday, we met with an Ecuadorian football player.
Here, 'Ekvadorlu' is used as a predicate, explaining the nationality of the person's favorite writer.